impressed at or with
I wasn't very impressed......the service in the restaurant.we had to wait ages.

When to use each preposition wit h " impressed"?

Thank you.

Question

impressed at or with
I wasn't very impressed......the service in the restaurant.we had to wait ages.

When to use each preposition wit h " impressed"?

Thank you.

Answer

'by' or 'with' are both fine.

Answer

Actually either "impressed by x" or "impressed with x" works in the example sentence.  I haven't thought about it very deeply but I think "by" and "with" are interchangeable when used with "impressed".

Answer

My apologies.

I guess you should use "WITH"

"I’ve been very impressed with the organization and execution of the event, the level of interest and the quality of material presented in the past. I’m optimistic that this year’s meeting will be even better.”

I read a sentence in this website:
http://www.bluetechforum.com/testimonials/lorem-ipsum-dolor-sit-amet-consectetur-adipisicing/

Answer

You use "By" when you are impressed by something

If someone impresses you, he or she impresses you with something.

So in this sentence you should use: by

I wasn't very impressed by the service...

Hope it helps